From e562d860d7c8ad28f83dc4c9094fd3ae648ea0d6 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sat, 11 Apr 2015 02:27:34 +0100 Subject: [PATCH] netfilter: nf_tables: kill nft_data_cmp() Only needlessly complicates things due to requiring specific argument types. Use memcmp directly. Signed-off-by: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_tables.h | 7 ------- net/netfilter/nft_cmp.c | 2 +- net/netfilter/nft_hash.c | 2 +- net/netfilter/nft_rbtree.c | 11 +++++------ 4 files changed, 7 insertions(+), 15 deletions(-) diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 81cd816554b9..fca0b5def629 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -69,13 +69,6 @@ struct nft_regs { }; }; -static inline int nft_data_cmp(const struct nft_data *d1, - const struct nft_data *d2, - unsigned int len) -{ - return memcmp(d1->data, d2->data, len); -} - static inline void nft_data_copy(struct nft_data *dst, const struct nft_data *src) { diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c index 59391e6a92a5..b7e1c58864cf 100644 --- a/net/netfilter/nft_cmp.c +++ b/net/netfilter/nft_cmp.c @@ -31,7 +31,7 @@ static void nft_cmp_eval(const struct nft_expr *expr, const struct nft_cmp_expr *priv = nft_expr_priv(expr); int d; - d = nft_data_cmp(®s->data[priv->sreg], &priv->data, priv->len); + d = memcmp(®s->data[priv->sreg], &priv->data, priv->len); switch (priv->op) { case NFT_CMP_EQ: if (d != 0) diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c index b1101f71807f..26ba4e192121 100644 --- a/net/netfilter/nft_hash.c +++ b/net/netfilter/nft_hash.c @@ -62,7 +62,7 @@ static inline int nft_hash_cmp(struct rhashtable_compare_arg *arg, const struct nft_hash_cmp_arg *x = arg->key; const struct nft_hash_elem *he = ptr; - if (nft_data_cmp(nft_set_ext_key(&he->ext), x->key, x->set->klen)) + if (memcmp(nft_set_ext_key(&he->ext), x->key, x->set->klen)) return 1; if (nft_set_elem_expired(&he->ext)) return 1; diff --git a/net/netfilter/nft_rbtree.c b/net/netfilter/nft_rbtree.c index 42d0ca45fb9e..b398f1a856d5 100644 --- a/net/netfilter/nft_rbtree.c +++ b/net/netfilter/nft_rbtree.c @@ -45,7 +45,7 @@ static bool nft_rbtree_lookup(const struct nft_set *set, while (parent != NULL) { rbe = rb_entry(parent, struct nft_rbtree_elem, node); - d = nft_data_cmp(nft_set_ext_key(&rbe->ext), key, set->klen); + d = memcmp(nft_set_ext_key(&rbe->ext), key, set->klen); if (d < 0) { parent = parent->rb_left; interval = rbe; @@ -91,9 +91,9 @@ static int __nft_rbtree_insert(const struct nft_set *set, while (*p != NULL) { parent = *p; rbe = rb_entry(parent, struct nft_rbtree_elem, node); - d = nft_data_cmp(nft_set_ext_key(&rbe->ext), - nft_set_ext_key(&new->ext), - set->klen); + d = memcmp(nft_set_ext_key(&rbe->ext), + nft_set_ext_key(&new->ext), + set->klen); if (d < 0) p = &parent->rb_left; else if (d > 0) @@ -153,8 +153,7 @@ static void *nft_rbtree_deactivate(const struct nft_set *set, while (parent != NULL) { rbe = rb_entry(parent, struct nft_rbtree_elem, node); - d = nft_data_cmp(nft_set_ext_key(&rbe->ext), &elem->key, - set->klen); + d = memcmp(nft_set_ext_key(&rbe->ext), &elem->key, set->klen); if (d < 0) parent = parent->rb_left; else if (d > 0) -- 2.20.1